autospeed.com

[Sandman]

http://www.autospeed.com (http://www.autospeed.com/)

This looks to be a pretty neat site with lots of usefull info. The bad part is, some of the articles require registration. The good new is, several don't.

Here is a good article on air intake temp and how to monitor it.
http://www.autospeed.com/cms/article.html?&A=0360

[Tex Arcana]

Nice, except it's a subscription site, and getting any further into some of the articles is costly as hell.